{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xee4115e7d890eac0640083cd57d9fcd732adbd279c89f098ca4d00bdbb084b42",
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    "signer": "0xdFB9866e659412DE3d5Ec4011195e85BB269c1E4",
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  }
}